BREAKING NEWS....(from 7 months ago, sorry, 8 months ago !)
Besides - MagPul is best reserved for airsoft wannabe's - as the PTS side of the business proves...
870's are an example of where the KISS rule comes into play.
Get a better follower, polish the action bars & a couple of other areas, Scattergun Tech safety, extended mag & maybe a couple of other minor tuning/improvements
As for fanboi plastic stocks = Less is more, stick with a Police type walnut stock, or an early Knoxx recoil type = spend the cash you save on more ammo for practice.